As far as I know, the plug is OK. It was working fine in November but has not been used since then. I took the plug out and cleaned it but it seems to make no difference. The primer pulls fuel through the visible part of the fuel line. Using same fuel as before. Would I check for fire by taking the plug out and still having it connected while pulling the rope through?As far as I know, the plug is OK. It was working fine in November but has not been used since then. I took the plug out and cleaned it but it seems to make no difference. The primer pulls fuel through the visible part of the fuel line. Using same fuel as before. Would I check for fire by taking the plug out and still having it connected while pulling the rope through?

Yes, take it out and prop it against the head of the motor. you may have to get somewhere dark so that you can see the spark. But you may not want to hold it with your fingers as you pull the rope, it may bite! If you have no spark, then you have a bad plug or a bad ignition module.

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Hi Anonymouse:
I'd be checking to make sure that the correct fluid in the correct amount was added to the correct place.
Start with the oil. Check the dipstick or indicator level. Too much oil will stop the engine. Sometimes gas get accidently put in the oil filler if an inexperienced person is helping with the maintenance.
Gas.......... Make sure that oil was not accidently added to the gas tank. Drain the carb and put fresh gas in the gas tank.
Spark plug.;.... pull and check for fouling. Replace if not really clean. Check for hot blue spark before re-installing.
This should get you back digging up the garden very soon.

I hope you are using fresh gas, as when gas gets old from previous season use, it can be the problem. I have seen a spark plug fouling, giving the same results though. I don't know the hours you have run the saw, or the severe use it may have seen. Have you checked air cleaner? fuel supply? If it was set up for a long period of time with old gas, carb may need cleaning.Hope all these questions stimulate some possible problem resolution

The only way oil can get into gas is if someone adds oil to the gas! Drain gas tank. Put Clean gas in and try it then. Oil in gas usually fouls the plug so if it doesn't run by now, check the firing in the plug.

If it is a 4 cycle blower, you do not mix oil with the fuel....It takes straight Gas. there is an oil cap to put engine oil in crankcase, this only usually takes 2,3,4 oz. of oil. Sounds like your Spark Plug probably fouled out from having oil mixed in your gas. I would recomend changing your Spark Plug and put some Fresh GAS only in the blower, dump the old stuff out !!! You should be on your way Blowing in No Time !

you can try and remove the old gas the carburetor and perhaps the fuel filter are most likly fouled with gunk from the old gas. When gas sits, over time it forms a thick gummy deposit that can clog carburetors, and anything else. try fresh gas with some carburetor cleaner (NOT the kind in the spray can) mixed in. It may need to have the carburetor rebuilt or replaced.

If it has been sitting for a few months, remove and check your spark plug. If it is wet it is getting fuel. Replace it if worn or fouled but that is doubtful unless you have had it for quite some time. Then get some 100% acetone (Wal-Mart or a beauty supply store) and add a couple of ounces of it to your fresh gas mixture in the mantis fuel tank. This will clean out build up in your carb, etc. Try to start it several times. If unsuccessful after several pulls, let it set for a while. Do this several times until it sounds like it wants to start. Using this procedure it eventually will. This website has a video for detailed instructions to adjust the carb should that be necessary. It is actually quite simple. http://www.alamia.us/mantis_parts_s/148.htm

Lots of the starting problems with 2 cycle engines (weed eaters,
blowers, chain saws, etc) are caused by leaving them stored for long
periods of time with the oil/gas mixture left in them. what happens is
that a residue forms on parts in the carb.

Try the following: empty the fresh gas out of the blower. add a gas
stabilizer to the existing gas you plan to put in the blower. You can
get this stabilizer at any auto parts store. While you are there get a
can of spray start fluid. Put the fresh, modified gas in the blower.
Take the spark out and spray some starter fluid in the plug
hole.Replace the spark plug and try to start the engine.It will
probably take a few cycles of doing this to get the blower to stay
running.
when you put the blower up for a long period, empty the remaining gas
out then start the engine and run it till it stops. this gets the
remaining gas out of the carb.